You know that feeling when you finish a final exam and you think, 'I never want to do that again'? Well I have the same feeling when I finish a novel. Each time I say, 'I think I may retire now' and then after six months the ideas start to churn again. I could never stop.

Quite frankly, I think political correctness is the worst form of censorship. You're not allowed to speak your mind unless you're black, or unless you're a terrorist, or unless you're an Arab or a minority people. Then you can say what you like. But if you are like a lot of us you are not supposed to say certain things.

Usually halfway through a book I have a serious depression, so I go on safari on my ranch in South Africa, or fishing off my island in the Seychelles. When I come back and re-read it, I think: 'What was all that about, Smith? It's fine, just get on with it.'

All my characters have got a big slice of me in them. A big piece of me, because it's my dialogue and this is the way I think and talk.